Fume-destroying composition.



UNITED STATES PATENT OFFICE.

HAMILTON SANB ORN, OF RHYOLITE, NEVADA, ASSIGN OR OF ONE-HALF TO SAM F. LINDSAY, OF RHYOLITE, NEVADA.

FUME-DESTROYING COMPOSITION.

Specification of Letters Patent.

Patented May 21, 1907.

Application flied May 24,1906. Serial No. 318,559.

.citizen of the United States, residing at Rhyolite, in the county of Nye and State of Nevada, have invented new and useful Improvements in a Fume-Destroying Composition, of which the following is a specification.

My invention relates to a composition for destroying obnoxious gases and fumes in mmes.

The invention comprehends placing 50% of carbonate of ammonia, of calcium chlorid, and 25% of bicarbonate of soda in a cartridge, and de ositin the cartridge in the bottom of the b ast ho e prior to inserting and discharging the blast.

When the blast is exploded certain chemical reactions take place, the nature of which I am unfamiliar with; but I have found that the chemicals enumerated have the effect of rendering innocuous the gases contained in or generated by the explosion of nitro-glycerin powder; and that it purifies, clears up and cools the air in the mine so that the miners can return to work at once. It prevents any injurious effects and obviates headaches and sickness which so often follow the discharge of a mine blast.

The ingredients are preferably intimately mixed together in a dry pulverized form in quantities sufficient for the particular cartridge charge or size of the ingredients, being substantially in the proportion before given.

Having thus described my invention, what I claim and desire to secure by Letters Patent 1s 1. A composition for fume destroying cartridges consisting ofa mixture of carbonate of ammonia, calcium chlorid, and bicarbonate of soda wherein the proportion of the carbonate of ammonia is in excess of that of the calcium chlorid.

2. A composition for fume destroying cartridges consisting of a mixture of carbonate of ammonia, calcium chlorid, and bi-carbonate of soda, the proportion of. carbonate of ammonia bein' in excess of that of either the calcium chlori and bi-carbonate of soda.

3.- A composition for fume destroying cartridges consisting of a mixture of carbonate of ammonia, calcium chlorid, and bi-carbonate of soda, the pro ortion of calcium chlorid being substantial y one-half of that of the carbonate of ammonia.

4. A composition for fume destroying car-- tridges consisting of a mixture of carbonate of ammonia, calcium chlorid, and bi-carbonate of soda, the proportion of bicarbonate of soda being-substantially one-half of that of the carbonate of ammonia and substantially equal to that of the calcium chlorid.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- HGSSBS.

HAMILTON 'SANBORN. Witnesses:

JOHN BEoKMAN, J. B. LINDSAY. 

